linux-kernel - [PATCH] mm: exit.c reorder wait_opts to remove padding on 64 bit builds

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Date:	Sun, 10 May 2009 15:40:55 +0100
From:	Richard Kennedy <richard@....demon.co.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Oleg Nesterov <oleg@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: [PATCH] mm: exit.c reorder wait_opts to remove padding on 64 bit
 builds

reorder struct wait_opts to remove 8 bytes of alignment padding on 64
bit builds

Signed-off-by: Richard Kennedy <richard@....demon.co.uk>
---

Hi Andrew,
Oleg asked me to send you this patch against your tree.

patch against latest mmotm.git.
successfully compiled but has had no other testing.

regards
Richard


diff --git a/kernel/exit.c b/kernel/exit.c
index 6e8c9fd..576e626 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1080,8 +1080,8 @@ SYSCALL_DEFINE1(exit_group, int, error_code)
 
 struct wait_opts {
 	enum pid_type		wo_type;
-	struct pid		*wo_pid;
 	int			wo_flags;
+	struct pid		*wo_pid;
 
 	struct siginfo __user	*wo_info;
 	int __user		*wo_stat;


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